Gas generator and burner.



J. E. EVANS.

GAS GENERATOR AND BURNER.

APPLICATION FILED FEB- 7. l9l8.

Patented Jan. 28, 1919.

/- in go I I JAMES E. EVANS, OF LOS ANGELES, CALIFORNIA.

GAS GENERATOR AND BURNER.

Specification of Letters Patent.

Application filed Febrnary 7, 1918. Serial No. 215,894.

Toall whom it may concern:

Be it known that I, JAMES E. Evans, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and-State of California, have invented certain new and useful Improvements in Gas companying drawings in which similar letters and numerals of reference indicate like parts throughout the several figures and as describedin the specification forming a part of this application and pointed out in the appended claims.

In the drawings in which I have shown a substantial embodiment of 'my invention, Figure 1 is a side elevation of the apparatus. Fig. 2 is a transverse section on line 2 2 of Fig. 1. Fig. 3 is a vertical longitudinal section through the generator and burner. 1 5

The present inventlon is a compact apparatus which may be placed in the fire box of a stove or furnace and wherein a low grade liquid fuel such as crude petroleum, or distillate may be forced by compressed air into a gas generator wherein said liquid, fuel is converted into a gas, and said gas and the required amount of air is then conducted into a burner positioned below the said generator where said gas is burned to supply heat in the stove or furnace and to continue the generation of gas from said liquid fuel. In other apparatuses of a similar kind carbon, in the form of soot,

accumulates in the generator or valves thereof to such an extent as to require frequent cleaning of the parts, and in the present invention elements are provided which will obviate such difiiculties.

I provide a fuel reservoir A to which is operatively connected an air pump B by means of which compressed air is provided to force the liquid fuel, such as distillate, from said reservoir A through a small pipe G into one endof the generator D. The said generator consists of a cylinder 1 externally threaded at each end and on which the reducer unions 2 and 2' are screwed. The said cylinder 1 is filled with longitudinally disposed pieces of wire 3 to prevent pounding and impede the flow of the liquid fuel and to prevent the accumulation of unburned carbon in the generator. In each of said unions is screwed a smaller cylinder or pipe, shown at 4 and 4, whereby the ingress and egress of said cylinder 1 is greatly reduced. The said supply pipe C is fastened'into and connects with one of said pipes4. The said generator is mounted in supports ,5 which are formed on the end of the burner E. A- water or moisture tap F is provided on each of said unions 2 and 2 through which moisture is introduced into said generator to prevent the accumulation of carbon in said generator, or to clean the carbon out of said generator after it has accumulated. The said taps consist of a cup 6 having a valve controlled opening or conduit 7 from its bottom into the interior of said generator, and preferably at each end thereof. The valve of said taps is the ordinary needle valve which screws into said conduit and seats therein to shut ofl the flow of moisture, as desired. On the end of the said pipe 4' opposite the said generator is screwed-a centrally perforated cap 8 which is in turn fastened into the.

end of the carburetor or mixing tube. The said mixing tube or carburetor consists of a U-shaped metal tube 9, which is screwed into or may be integrally formed on one end of the burner E. A. damper G is provided on 'the end of said tube 9 by concentrically fastening on the end of said tube a perforated disk 10, and on an extended sleeve portion of said cap8 is concentrically carried another perforated disk 11. The perforations in said disks are so formed and arranged that when the disk 11 is partially rotated on said sleeve the perforations may be brought into or out of alinement and air will enter said tube 9 or not as desired. Another air intake is provided in said tube 9 by forming an elongated slot 12 in its wall opening to the under side of said tube. The slot 12 is intended to remain constantly open and the control of the air is secured by operating the damper disk 11. A sieve or strainer 13 is fastened in said union 2' covering the egress end of said cylinder 1 to prevent as much as possible the accumulation of carbon at the perforation of said cap 8, which Patented Jan. 28, 1919.-

perforation is the equivalent or corresponds to the ordinary needle valve in most of similar burners and generators, and should said perforation in said cap 8 become clogged I provide a plunger 14 which is mounted in the curved end of said tube 9 and screw threaded therein by means of which said plunger may be inserted within the perforation in said cap 8 to clean it' if necessary.

' The burner E consists of a semi-cylindrical metal casing 15, having a diametrically disposed bottom and curved sides, and into one end of which the said tube 9 opens. The said casing 15 is mounted on legs 16, and has a longitudinal priming channel 17 formed in its upper portion and directly beneath the said generator D into which liquid fuel may be carried and burned to generate the first or initial gas and before the burner proper has become sufliciently hot and the supply of gas constant. Flame slots 18 are cut through the Walls of said casing 15 to allow the gas to flow from the interior of said burner, and the curved form given to the walls of said the burner by the flames as the gas flow 1s in a thin narrow sheet, and with a curved wall the tendency is away from rather than toward the burner.

The operation of my apparatus is as follows:

With the fuel in the reservoir A compression is applied by the pump B, and a priming charge of liquid fuel such as alcohol or other volatile oil is supplied in the priming channel 17 and lighted. Some of the oil from the reservoir A is forced through the pipe U into the cylinder 1, and the heat from the priming charge, as the flames arise around the generator, converts the fuel in the cylinder 1 into gas, which escapes with compression and reduced volume through the short pipe 4 and the central perforation in the cap 8. Air is supplied through the slot 12 and damper G to make the desired mixture with the gas as it flows through the tube 9 and into the burner E. The said mixture flows out through the slots 18 and is lighted from the flames of the riming charge which are still burning. Should the fuel be of such grade as to leave a residue of unconsumed carbon in the burner, which may stop the flow of gas through the cap 8, a small charge of water is supplied through the moisture cups F to the interior of said burner and the carbon will be consumed and cleaned off, the

amount and regularity with which it is in troduced is determined by the operator and depends on the quality of the fuel used. The valves in the supply pipe C will regulate the quantity of fuel and amount of heat developed or generated.

Having thus described my invention I burner prevent injury to desire to secure by Letters Patent and claim 1. A gas generator and burner consisting of a semi-cylindrical casing having trans verse slots in its side walls; a priming channel formed in the upper portion of said casing; a cylindrical generator tube mounted above and spaced from said priming channel; a plurality of longitudinally disposed Wires in said generator tube; means to introduceliquid fuel oil into one end of said generator tube; a reducer pipe on each end of said generator tube; a screen cover onthe end of the egress reducer pipe; a perforated cap on the other end of said reducer pipe; a U-shaped tube connecting said perforated cap and said casing to conduct the gas from the perforation in said cap to the interior of said casing; air inlets in said V-shaped tube; a screw plunger to clean the perforation in said cap; and means to introduce a limited amount of water into said generator tube.

2. A gas generator and burner consisting of a semi-cylindrical casing having transverse slots in its side walls; a priming channel formed in the upper portion of said'casing; a cylindrical generator tube mounted above and spaced from said priming channel; a plurality of longitudinally disposed wires in said generator tube; means to introduce liquid fuel oil into one end of said generator tube; a reducer pipe on each end i of said generator tube; a screen cover on the end of the egress reducer pipe; a perforated cap on the other end of said reducer pipe; a U-shaped tube connecting said perforated cap and said casing to conduct the gas from the perforation in said cap to the interior of said casing; air inlets in said U-shaped tube; a screw plunger to clean the perforation in said cap; and means to introduce a limited amount of water into said generator tube; said means consisting of two moisture cups secured on and opening into the end portions of said generator tube.

3. An ap aratus of the class described consisting o a semi-cylindrical casing having transverse slots in its side walls; a priming channel formed inthe upper portion of said casing; a generator mounted above said priming channel; moisture cups with the interior of said generator; means to introduce liquid fuel under pressure into one end of said generator; means to reduce the interior of said generator to a single orifice; a plunger rod to clean said orifice; and a mixing tube connecting said generator and said casing.

4. An apparatus of the class described consisting of a semi-cylindrical casing-having transverse ing channel formed longitudinally in the upper portion of said casing; a generator tube mounted above said priming channel; a

connected slots in its side walls; a primin said generator tube; a fuel reservoir; a cap to the interior of said casing; a damper manually operated pump to force air and on the end of said last mentioned tube to fuel from said reservoir; a pipe connecting regulate the flow of air into said tube; a said reservoir and said generator tube; a rescrew plunger operable in the perforatwn 5 ducer on the egress end of said generator in said cap; and moisture cups connected 15 tube; a screen between said generator tube with said generator tube to introduce moisand said reducer; a perforated cap on the ture into said generator tube. egress end of said reducer; a tube connect- In testimony whereof I have aflixed my ing said perforated cap and said casing to signature.

10 conduct gas from the perforation in said JAMES E. EVANS. 

